maureen naylor is there to explain. >> reporter: there's the sounds of tinkering pianos all over the bay area. and you'd be surprised who gets on these pianos. a symphony of sound is filling the bay area in the silican area. impromptu concerts are playing out as part of a new art exhibit called, play me i'm yours. >> piano players are the most derivative of all musicians. it's that we never have pianos to play. >> reporter: the silican valley is the first to get the exhibit, after new york. >> it puts you in a different mind set. >> reporter: from this high school student playing prelude in g minor. to this homeless man playing lean on me. every piano is drawing players. all with cars and light rails whizzing by. >> the goal is to place pianos in community meeting places in places where other wise people wouldn't have to speak to each other. >> reporter: where we found these two men that had just met. >> not only is this one of the greatest ideas san jose has ever had. but just the increasing and uprising as everybody wants to play music around here. i think that's one of the huge ou